make guide for sharing screen on mac (#330)

site/source/user-manual/device-guides/dg-mac.rst

@@ -12,3 +12,66 @@ To optimize your device for use with your Embassy, it is recommended to complete
 * :ref:`tor-mac` - Run Tor natively (in the background) on your Mac. This will allow you to use applications on your machine via the Tor Network so they can communicate with your Embassy.
 * :ref:`torff-mac` - Configure Firefox to use the Tor Network so that you can reach ".onion" sites without needing to change browsers.
 * :ref:`backup-mac` - Configure a Network Folder on your Mac (or an attached external drive) for Embassy backups.
+
+Screensharing
+_____________
+
+You may run into an issue and want to have a support call where we ask you to share your screen with us. While we understand if you'd rather not do this, it can make troubleshooting issues a lot easier. We will send you a Jitsi link and from there you can share your screen. If it doesn't work, please see the following instructions:
+
+.. tabs::
+
+    .. group-tab:: Pre-Ventura:
+
+        #. Head to System Preferences:
+
+            .. figure:: /_static/images/mac-stuff/system-prefs.png
+                :width: 20%
+
+        #. Click Security & Privacy:
+
+            .. figure:: /_static/images/mac-stuff/priv-security.png
+                :width: 20%
+
+        #. Click the lock to make changes and select "Privacy":
+
+            .. figure:: /_static/images/mac-stuff/click-lock.png
+                :width: 20%        
+
+        #. Click "Screen Recording" and click the + icon:
+
+            .. figure:: /_static/images/mac-stuff/screen-rec-plus.png
+                :width: 20%
+
+        #. Find your browser within the applications folder and click "Open":
+
+            .. figure:: /_static/images/mac-stuff/add-browser-screen-rec.png
+                :width: 20%
+
+        #. Restart your browser and you should now be able to share your screen by clicking on this button within the Jitsi call:
+
+            .. figure:: /_static/images/mac-stuff/jitsi-screenshare.png
+                :width: 20%
+
+
+
+    .. group-tab:: Ventura:
+
+        #. Head to System Settings and scroll down to "Privacy & Security":
+
+            .. figure:: /_static/images/mac-stuff/system-settings-priv-sec.png
+                :width: 20%
+
+        #. Scroll down and click "Screen Recording":
+
+            .. figure:: /_static/images/mac-stuff/screen-rec-vent.png
+                :width: 20%
+
+        #. You can then click the + icon and add your browser - you may need to restart your browser after this:
+
+            .. figure:: /_static/images/mac-stuff/screen-rec-plus-vent.png
+                :width: 20%
+
+        #. You should now be able to share your screen by clicking on this button within the Jitsi call:
+
+            .. figure:: /_static/images/mac-stuff/jitsi-screenshare.png
+                :width: 20%